CN108720843A - Visual pH electrode catheters - Google Patents
Visual pH electrode catheters Download PDFInfo
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- CN108720843A CN108720843A CN201810729089.3A CN201810729089A CN108720843A CN 108720843 A CN108720843 A CN 108720843A CN 201810729089 A CN201810729089 A CN 201810729089A CN 108720843 A CN108720843 A CN 108720843A
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- catheter body
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- 230000000007 visual effect Effects 0.000 title claims abstract description 30
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 28
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 21
- 239000003292 glue Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 1
- 210000003238 esophagus Anatomy 0.000 abstract description 7
- 210000003928 nasal cavity Anatomy 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000000523 sample Substances 0.000 description 3
- 210000002318 cardia Anatomy 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 208000021302 gastroesophageal reflux disease Diseases 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/14503—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0538—Measuring electrical impedance or conductance of a portion of the body invasively, e.g. using a catheter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/14539—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring pH
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The present invention provides a kind of visual pH electrode catheters, belong to the field of medical instrument technology.It is unreasonable that it solves existing visual electrode catheter structure design, the problem of being unable to free bend.This visual pH electrode catheter, reference electrode and antimony electrode including catheter body, in catheter body, the conducting wire one for stretching into catheter body is connected on reference electrode, the conducting wire two for stretching into catheter body is connected on antimony electrode, the front end of catheter body is connected with the connector for fixing reference electrode, the front end of connector is equipped with camera, and the output end of camera is connected with the conducting wire four for stretching into catheter body, and the connection structure being bent with the shape is equipped between camera and connector.Structure of the invention compact and reasonable, may be implemented flexible bending between camera and reference electrode so that entire electrode catheter is able to the free bend in nasal cavity and esophagus.
Description
Technical field
The invention belongs to the field of medical instrument technology, are related to a kind of visual pH electrode catheters.
Background technology
Esophageal reflux monitoring at present can only lean on esophageal pH, impedance and pressure and other parameters to reflect patient's Oesophageal physiological situation,
But clinically the observation for the physical characters that backflow and when backflowing the folding condition observation of cardia have more and more eager face
Bed demand.
For this purpose, Chinese patent discloses a kind of visual esophagus impedance pH value monitoring device, [Authorization Notice No. is
CN205031258U], including medical catheter, pH sensors and impedance transducer, further include camera and data logger, pH is passed
Sensor and camera may be contained within medical catheter and probe into end front, and when work, pH sensors are located at accurate check bit in esophagus
It sets and medical catheter probes into end top and is not deep into inside stomach, the output end of pH sensors, impedance transducer and camera is logical
The conducting wire crossed in medical catheter is connected to the corresponding data input pin of data logger, and graduated scale is provided on medical catheter.
Cardia opens closed when the detection device can observe the character for the substance that backflows and gastroesophageal reflux occurs in real time,
But there are still problems with for it:Camera is set to the side of medical catheter, increases the cross-sectional area at this, is not easy when detecting
Into human body;The outside of camera has trapezoidal enclosure, is made of hard material, so that sick body is generated bad impression, while outer
Shell have certain length, cannot in nasal cavity or esophagus free bend.
Invention content
The purpose of the present invention is there is the above problem in view of the prior art, it is proposed that a kind of reasonable in design visual
PH electrode catheters.
Object of the invention can be realized by the following technical scheme:
Visual pH electrode catheters, including catheter body, reference electrode and antimony electrode in catheter body, the ginseng
The conducting wire one of catheter body is stretched into than being connected on electrode, and the conducting wire two for stretching into catheter body is connected on the antimony electrode,
It is characterized in that, the front end of the catheter body is connected with the connector for fixing reference electrode, the front end of the connector
Equipped with camera, the output end of the camera is connected with the conducting wire four for stretching into catheter body, the camera and connector
Between be equipped with the connection structure that is bent with the shape.
Reference electrode is connect by conducting wire one with the corresponding data input terminal of the data logger positioned at catheter body rear end,
Antimony electrode is connect by conducting wire two with the corresponding data input terminal of the data logger positioned at catheter body rear end, and camera passes through
Conducting wire four is connect with the corresponding data input terminal of the data logger positioned at catheter body rear end.Scale is equipped in catheter body
Ruler, so that doctor holds the specific depth of insertion sick body.
In above-mentioned visual pH electrode catheters, the connection structure includes connecting conduit, and the camera is set to
The front end of connecting conduit, the conducting wire four are arranged in connecting conduit, and the rear end of the connecting conduit is connect with connector.Even
Connecing conduit and catheter body has profile-followed flexural property, connector and camera is separated, obtaining can between camera and reference electrode
To realize flexible bending so that entire electrode catheter is able to the free bend in nasal cavity and esophagus.
In above-mentioned visual pH electrode catheters, the outside of the camera is columned shell, before the shell
End is equipped with the optics protecgulum in spherical arc shape structure, the front end sleeve of the connecting conduit be set to the rear end of shell and with shell tight fit
The front end of connection, the connector has cylindrical interconnecting piece, and the rear end of the connecting conduit is sheathed on interconnecting piece simultaneously
With interconnecting piece tight fit connection.It, can be in interconnecting piece and connecting conduit in order to ensure stability that interconnecting piece is connect with connecting conduit
Between coating glue.Connecting conduit fully wrapped around firmly shell, connecting conduit are extended into the connection of optics protecgulum and shell
The shell at place, camera extends along the length direction of connecting conduit.
In above-mentioned visual pH electrode catheters, the connector is cylindrical and is coaxially disposed with interconnecting piece, described
The rear end of connector has connecting hole, and the front end of the catheter body is connected in connecting hole, have in the connector with
The through-hole of connecting hole connection, the conducting wire four are arranged in through-hole.Catheter body can be by way of interference fit and connection
Hole connects, to ensure the stability of connection, can coating glue therebetween, or squeeze into rivet from the side of connector and make it
It is riveted together.In connection, first by the front end radial contraction of catheter body, so as to effectively reduce the outer diameter of connector.
In above-mentioned visual pH electrode catheters, the front end of the connecting hole has axially extending installation shrinkage pool, described
There is the side opening one being connected to installation shrinkage pool, the reference electrode to be set in installation shrinkage pool for the side of connector, the company
Seal assembly is equipped between junctor and reference electrode.Side opening one can be such that reference electrode is contacted with fluid to be measured.
In above-mentioned visual pH electrode catheters, the seal assembly includes the glue sealing for being set to installation shrinkage pool rear end.
Reference electrode is equipped with installation shrinkage pool, and the length of reference electrode is less than the length of installation shrinkage pool, and reference electrode is put into peace
After filling in shrinkage pool, is sealed by way of envelope fills glue and fix reference electrode, fluid to be measured can be effectively prevent to enter.
In above-mentioned visual pH electrode catheters, there is the diversion being equipped with side opening one on the reference electrode
Core, the diversion core stretch into side opening one.Diversion core can limit the axial movement of reference electrode, improve the stabilization of reference electrode
Property.
In above-mentioned visual pH electrode catheters, several impedance rings, the impedance are arranged in the catheter body
The conducting wire three for stretching into catheter body is connected on ring.
In above-mentioned visual pH electrode catheters, there is side opening two, the antimony electrode to wear in the catheter body
In side opening two, the fixed structure for fixing antimony electrode is additionally provided in the catheter body.
In above-mentioned visual pH electrode catheters, the fixed structure includes the fixed ring being sheathed in catheter body,
There is the side opening three being coaxially disposed with side opening two, the head end of the antimony electrode to be fixed by way of glue envelope in the fixed ring
In side opening three.
Wherein, fixed ring can be the impedance ring that conducting wire three is not arranged for one of them.When installation, which is fixed to
In catheter body, side opening three is made to be aligned with side opening two, antimony electrode is penetrated into side opening two and side opening three, by the head end of antimony electrode
It is fixed in side opening three by way of glue envelope.Impedance ring is made of metal material, and is only sealed by a glue, to antimony electrode
Be fixed conveniently quick, and stability is good.After using impedance ring as fixed ring, can effectively reduce antimony electrode installation site cannot
The length of bending.
Compared with prior art, this visual pH electrode catheter has the following advantages:
Camera is inserted into the softer connecting conduit of quality, had both solved the problems, such as that camera installation was fixed, while
Overcome the bad impression caused by the tactile sick body of camera shell too firm docking;Conducting wire four is penetrated into connector, camera can be made
It furthers at a distance from reference electrode, and has enough deflection distances between camera and reference electrode when energy so that entire electrode
Conduit is able to the free bend in nasal cavity and esophagus.
Description of the drawings
Fig. 1 is the exploded perspective view of preferred embodiment provided by the invention.
Fig. 2 is sectional view when preferred embodiment provided by the invention is unassembled.
Fig. 3 is preferred embodiment provided by the invention sectional view when assembled.
Fig. 4 is the sectional view of connector provided by the invention.
In figure, 1, catheter body;2, reference electrode;3, antimony electrode;4, impedance ring;5, connector;6, camera;7, it connects
Conduit;8, interconnecting piece;9, connecting hole;10, through-hole;11, shrinkage pool is installed;12, side opening one;13, glue sealing;14, diversion core;15,
Side opening two;16, side opening three;17, fixed ring.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Visual pH electrode catheters as shown in Figs. 1-3, including catheter body 1, be set to catheter body 1 on reference electrode 2,
Antimony electrode 3 and impedance ring 4 are connected with the conducting wire one for stretching into catheter body 1 on reference electrode 2, are connected with to stretch on antimony electrode 3 and lead
The conducting wire two of tube body 1, the conducting wire three for stretching into catheter body 1 is connected on impedance ring 4, and the front end connection of catheter body 1 is useful
It is equipped with camera 6 in the front end of the connector 5 of fixed reference electrode 2, connector 5, the output end of camera 6 is connected with to stretch into and lead
The conducting wire four of tube body 1 is equipped with the connection structure being bent with the shape between camera 6 and connector 5.
Reference electrode 2 is connected by conducting wire one and the corresponding data input terminal of the data logger positioned at 1 rear end of catheter body
It connects, antimony electrode 3 is connect by conducting wire two with the corresponding data input terminal of the data logger positioned at 1 rear end of catheter body, impedance
Ring 4 is connect by conducting wire three with the corresponding data input terminal of the data logger positioned at 1 rear end of catheter body, and camera 6 passes through
Conducting wire four is connect with the corresponding data input terminal of the data logger positioned at 1 rear end of catheter body.It is equipped with and carves in catheter body 1
Ruler is spent, so that doctor holds the specific depth of insertion sick body.
As depicted in figs. 1 and 2, connection structure includes connecting conduit 7, and camera 6 is set to the front end of connecting conduit 7, conducting wire
Four are arranged in connecting conduit 7, and the rear end of connecting conduit 7 is connect with connector 5.Connecting conduit 7 has profile-followed with catheter body 1
Flexural property separates connector 5 and camera 6, obtains and flexible bending may be implemented between camera 6 and reference electrode 2 so that is whole
A electrode catheter is able to the free bend in nasal cavity and esophagus.
In the present embodiment, the outside of camera 6 is columned shell, and the front end of shell is equipped with the light in spherical arc shape structure
Learn protecgulum, the front end sleeve of connecting conduit 7 be set to the rear end of shell and with shell tight fit connection, the front end of connector 5, which has, is in
The rear end of columned interconnecting piece 8, connecting conduit 7 be sheathed on interconnecting piece 8 and with 8 tight fit connection of interconnecting piece.In order to ensure
The stability that interconnecting piece 8 is connect with connecting conduit 7, can between interconnecting piece 8 and connecting conduit 7 coating glue.Connection should be led
Pipe 7 fully wrapped around firmly shell, connecting conduit 7 extend to the junction of optics protecgulum and shell.
As depicted in figs. 1 and 2, connector 5 is cylindrical and is coaxially disposed with interconnecting piece 8, and the rear end of connector 5, which has, to be connected
Hole 9 is connect, the front end of catheter body 1 is connected in connecting hole 9, has the through-hole 10 being connected to connecting hole 9, conducting wire in connector 5
Four are arranged in through-hole 10.Catheter body 1 can be connect by way of interference fit with connecting hole 9, to ensure the stabilization of connection
Property, can coating glue therebetween, or squeezing into rivet from the side of connector 5 makes it be riveted together.In connection, first
By the front end radial contraction of catheter body 1, so as to effectively reduce the outer diameter of connector 5.
The size Control of connector 5 can smoothly enter into the size in human stomach-esophagus, catheter body 1 is being inscribed in
The rear end of connector 5 can reduce the diameter of catheter body 1, walk in human stomach-esophagus convenient for catheter body 1, reduce people's
Sense of discomfort.
As shown in Fig. 2, there is axially extending installation shrinkage pool 11, the side of connector 5 to have and peace for the front end of connecting hole 9
The side opening 1 that shrinkage pool 11 is connected to is filled, reference electrode 2 is set in installation shrinkage pool 11, is equipped between connector 5 and reference electrode 2 close
Sealing assembly, side opening 1 can be such that reference electrode 2 is contacted with fluid to be measured.The relationship of shrinkage pool 11 and through-hole 10 is installed as shown in figure 4,
Be equivalent to and opened up there are one axially grooved in the side of reference electrode 2, directly by conducting wire four be set to this it is axially grooved in, effectively subtract
Sectional area is lacked, has been entered in human stomach-esophagus convenient for connector 5.
As shown in figure 3, seal assembly includes the glue sealing 13 for being set to 11 rear end of installation shrinkage pool.Reference electrode 2 and installation are recessed
Hole 11 is equipped with, and the length of reference electrode 2 is less than the length of installation shrinkage pool 11, and reference electrode 2 is put into installation shrinkage pool 11
Afterwards, it is sealed by way of envelope fills glue and fixes reference electrode 2, fluid to be measured can be effectively prevent to enter.
As shown in figure 3, having the diversion core 14 being equipped with side opening 1 on reference electrode 2, diversion core 14 stretches into side
In hole 1.Diversion core 14 can limit the axial movement of reference electrode 2, improve the stability of reference electrode 2.
In the present embodiment, impedance ring 4 be several and be distributed in catheter body 1 probe into end front;Have in catheter body 1
Side opening 2 15, antimony electrode 3 are threaded through in side opening 2 15, and the fixed structure for fixing antimony electrode 3 is additionally provided in catheter body 1.
As shown in figure 3, fixed structure includes the fixed ring 17 being sheathed in catheter body 1, have in fixed ring 17 and side
The head end of the side opening 3 16 that hole 2 15 is coaxially disposed, antimony electrode 3 is fixed on by way of glue envelope in side opening 3 16.
As shown in figure 3, fixed ring 17 is the impedance ring that conducting wire three is not arranged for one of them.When installation, which is consolidated
Determine onto catheter body 1, so that side opening 3 16 is aligned with side opening 2 15, antimony electrode 3 is penetrated into side opening 2 15 and side opening 3 16,
The head end of antimony electrode 3 is fixed on by way of glue envelope in side opening 3 16.Impedance ring is made of metal material, and is only passed through
Glue envelope, it is quick to being fixed conveniently for antimony electrode 3, and also stability is good.After using impedance ring as fixed ring, it can effectively reduce
The unyielding length of 3 installation site of antimony electrode.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of visual pH electrode catheters, including catheter body (1), the reference electrode (2) in catheter body (1) and antimony electricity
Pole (3) is connected with the conducting wire one for stretching into catheter body (1) on the reference electrode (2), and the antimony electrode connects on (3)
There is the conducting wire two for stretching into catheter body (1), which is characterized in that the front end of the catheter body (1) is connected with for fixing reference
The front end of the connector (5) of electrode (2), the connector (5) is equipped with camera (6), and the output end of the camera (6) connects
There is the conducting wire four for stretching into catheter body (1), the connection knot being bent with the shape is equipped between the camera (6) and connector (5)
Structure.
2. visual pH electrode catheters according to claim 1, which is characterized in that the connection structure includes connecting conduit
(7), the camera (6) is set to the front end of connecting conduit (7), and the conducting wire four is arranged in connecting conduit (7), described
The rear end of connecting conduit (7) is connect with connector (5).
3. visual pH electrode catheters according to claim 2, which is characterized in that the outside of the camera (6) is cylinder
The shell of shape, the front end of the shell are equipped with the optics protecgulum in spherical arc shape structure, and the front end sleeve of the connecting conduit (7) is set to
The rear end of shell and with shell tight fit connection, the front end of the connector (5) has cylindrical interconnecting piece (8), described
The rear end of connecting conduit (7) be sheathed on interconnecting piece (8) and with interconnecting piece (8) tight fit connection.
4. visual pH electrode catheters according to claim 3, which is characterized in that the connector (5) it is cylindrical and
It is coaxially disposed with interconnecting piece (8), there is connecting hole (9), the front end of the catheter body (1) to connect for the rear end of the connector (5)
It is connected in connecting hole (9), there is the through-hole (10) being connected to connecting hole (9), the conducting wire four to wear in the connector (5)
In through-hole (10).
5. visual pH electrode catheters according to claim 4, which is characterized in that the front end of the connecting hole (9) has axis
To the installation shrinkage pool (11) of extension, the side of the connector (5) has the side opening one (12) being connected to installation shrinkage pool (11), institute
The reference electrode (2) stated is set in installation shrinkage pool (11), and sealing group is equipped between the connector (5) and reference electrode (2)
Part.
6. visual pH electrode catheters according to claim 5, which is characterized in that the seal assembly includes being set to installation
The glue sealing (13) of shrinkage pool (11) rear end.
7. visual pH electrode catheters according to claim 5 or 6, which is characterized in that have on the reference electrode (2)
The diversion core (14) being equipped with side opening one (12), the diversion core (14) stretch into side opening one (12).
8. the visual pH electrode catheters according to claims 1 or 2 or 3 or 4 or 5 or 6, which is characterized in that the conduit
It is arranged with several impedance rings (4) on ontology (1), the conducting wire three for stretching into catheter body (1) is connected on the impedance ring (4).
9. the visual pH electrode catheters according to claims 1 or 2 or 3 or 4 or 5 or 6, which is characterized in that the conduit
There is side opening two (15), the antimony electrode (3) is threaded through in side opening two (15), in the catheter body (1) on ontology (1)
It is additionally provided with the fixed structure for fixing antimony electrode (3).
10. visual pH electrode catheters according to claim 9, which is characterized in that the fixed structure includes being sheathed on
Fixed ring (17) in catheter body (1) has the side opening three being coaxially disposed with side opening two (15) in the fixed ring (17)
(16), the head end of the antimony electrode (3) is fixed on by way of glue envelope in side opening three (16).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810729089.3A CN108720843B (en) | 2018-07-05 | 2018-07-05 | Visual pH electrode catheter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810729089.3A CN108720843B (en) | 2018-07-05 | 2018-07-05 | Visual pH electrode catheter |
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CN108720843A true CN108720843A (en) | 2018-11-02 |
CN108720843B CN108720843B (en) | 2024-05-24 |
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CN201810729089.3A Active CN108720843B (en) | 2018-07-05 | 2018-07-05 | Visual pH electrode catheter |
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Cited By (1)
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CN110584668A (en) * | 2019-10-24 | 2019-12-20 | 重庆金山科技(集团)有限公司 | impedance-pH electrode catheter |
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